Removes and/or replaces all mentions of py27.

Cleans up obsolete requirements and their lower-constraints.

Update cliff minimum to 3.1.0 in requirements.txt, which has a fix for
story 2005891.

Change-Id: I52cffa2f1aee944f79c4618ea20b779755792f2a

Python Build Reasonableness (PBR) [1] is used by most OpenStack projects
for building python packages, so we should fall into line here.

[1] https://pypi.python.org/pypi/pbr

Change-Id: Ic74a62eeb65e7158ce75a082e68652c2e50a2a91
Story: #2001637
Task: #6648

This release is based on the OpenStack Pike release.

This allows Cliff to register commands for them.

Adds these new commands:

kayobe baremetal compute inspect
kayobe baremetal compute manage
kayobe baremetal compute provide

These can be used to set the provision state of ironic nodes in the
baremetal-compute group.

kayobe network connectivity check

Adds support for the OpenStack pike release.

Update python module version, edit release notes.

Adds these commands:

kayobe overcloud service configuration generate
kayobe overcloud service configuration save

The former generates configuration for kolla-ansible, the latter copies
kolla-ansible configuration from the overcloud hosts to the ansible control
host.

Update python module version to 2.0.0, edit release notes.

This command performs necessary changes on the host to prepare the control
plane for an upgrade.

Currently this performs a workaround for issue #14, RabbitMQ upgrade failure.

We clear stale entries from /etc/hosts on the overcloud hosts and from the
rabbitmq containers, which allows the upgrade to complete successfully. The
source of the stale entries is currently unknown.

The CLI command is:

kayobe overcloud introspection data save [--output-dir <dir>] [--output-format <format>]

This command will save introspection data collected by the seed host's ironic
inspector service to the control host for analysis.

Overcloud deployment images can now be built via:

kayobe overcloud deployment image build

This should be done prior to running kayobe overcloud service deploy.
In order to build IPA images, the ipa_build_images variable should be
set to True. In this case, these images will be used by the overcloud's
ironic inspector service during hardware inspection, and by ironic
during provisioning.

The CLI command is:

kayobe seed deployment image build

This command will build Ironic Python Agent (IPA) kernel and ramdisk images
using the Diskimage Builder (DIB) ironic-agent element. The built images will
be copied to the appropriate location in the bifrost_deploy container on the
seed.

This allows us to build a customised image with site- or hardware- specific
extensions.

This command will destroy the seed VM and all associated data volumes.

Currently supports configuration of:
- Local networking
- NTP
- Libvirt storage pools and networks

'kayobe overcloud service destroy' will destroy all containers,
container images, and volumes on the overcloud hosts. All data will
be lost, so use wisely!

Ansible is now a dependency of kayobe, and should either be installed
in a virtualenv or in the site python packages, so we no longer need
to install it via yum.

Also stop running the kolla.yml playbook during control host bootstrap, as it
is now run when required.

All python files now have a license header and copyright notice

kayobe overcloud service reconfigure maps to kolla's reconfigure command.
kayobe overcloud service upgrade maps to kolla's upgrade command.

Performs hardware inspection of controllers using existing ironic nodes

Also adds a command to pull container images

This will deprovision the overcloud controller nodes using Bifrost.

Currently this can configure interfaces on DellOS6 switches only but can be
extended to support other makes and models.

This change enables 'zero touch' provisioning of the overcloud hosts. Following
power on of the nodes, they are discovered by Ironic inspector running on the
seed node and registered with the seed node's instance of Ironic. Once discovered
and inspected, Kayobe uses the seed's Ironic inventory to populate its own Ansible
inventory. From here, we can fill out host variables for Bifrost to use when
provisioning the nodes. Finally, we configure Kolla Ansible's inventory.

The CLI replaces all existing shell scripts except for
configure-kayobe.sh. Other shell scripts are now removed.